[Documentation] Impreove the react-component section of doc (#9349)
* Impreove react-component of doc [#9304](https://github.com/facebook/react/issues/9304) * update description * add missing space
NE-SmallTown committed
Apr 18, 2017 at 21:42 UTC
359f5d276ffd4da96e3a00d7245da9fad004ba0d
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docs/docs/reference-react-component.md
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@@ -136,7 +136,7 @@ If you "fork" props by using them for state, you might also want to implement [`
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componentWillMount()
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```
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-`componentWillMount()` is invoked immediately before mounting occurs. It is called before `render()`, therefore setting state in this method will not trigger a re-rendering. Avoid introducing any side-effects or subscriptions in this method.
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+`componentWillMount()` is invoked immediately before mounting occurs. It is called before `render()`, therefore setting state synchronously in this method will not trigger a re-rendering. Avoid introducing any side-effects or subscriptions in this method.
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This is the only lifecycle hook called on server rendering. Generally, we recommend using the `constructor()` instead.
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